If you plan on bringing a bicycle, be aware that in Arizona, bicycles are subject to the same traffic rules as automobiles.
Bicycle Rentals are available on the South Rim.
Bicyclist campsites are available in the park's campgrounds
Bicycles are prohibited
Bicycles are permitted
The Hermit Road Greenway Trail segment, between The Abyss and Hermit Rest, provides a bicycle path away from the road and, in places, along the rim.
Hermit Road Greenway Trail (2008)
are provided by by Bright Angel Bicycles and are located near the Visitor Center.